Two particles $$A$$ and $$B$$ having charges 20 $$\mu$$C and $$-5$$ $$\mu$$C respectively are held fixed with a separation of 5 cm. At what position a third charged particle should be placed so that it does not experience a net electric force?

A

At 5 cm from $$-5$$ $$\mu$$C on the right side

B

At 5 cm from 20 $$\mu$$C on the left side of system

C

At 1.25 cm from $$-5$$ $$\mu$$C between two charges

D

At midpoint between two charges